A technique in which muscle groups are tensed and relaxed in turn is known as:

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This technique is called progressive muscle relaxation, where the individual tenses and relaxes muscle groups one at a time in a systematic manner to decrease muscle tension and induce relaxation. Biofeedback is a related technique that incorporates monitoring of physiological signals, such as muscle activity or heart rate, to provide feedback that helps the individual learn to control those processes. Systematic exercise refers to a structured program of physical activity, and meditation involves focusing one's attention and achieving a state of mental calm.

A Technique in Which Muscle Groups Are Tensed and Relaxed